JP3515617B2 - CO2 supply device in water tank - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-tank CO ₂ supply device for supplying CO ₂ to stored water in an aquarium in order to breed and grow aquatic plants to be planted in the aquarium.

[0002]

2. Description of the Related Art Generally, in order to breed and raise ornamental fish such as goldfish and tropical fish in an aquarium, and to enjoy and enjoy them, various aquatic plants are planted in the aquarium to supplement oxygen and It is used to provide a hiding place or spawning place, or to improve the image of the aquarium to enhance the ornamental effect.Recently, however, the number of aquatic plants has been reduced while a lot of various aquatic plants are planted to form, color and grow. There are more and more lovers who enjoy the degree.

By the way, since aquatic plants live by performing photosynthesis in which CO ₂ (carbon dioxide) and water are converted into carbohydrates by the power of light energy, it is essential for aquatic plants to have CO _{2 in the} water.

[0004] Therefore attach the CO ₂ diffusion tube by suction cups or the like on the inner wall surface of the tank is a conventional, previously filled with CO ₂ gas to the diffusion cylinder, to gradually elute the CO ₂ gas into water in the water tank It is well known that the CO ₂ is replenished in water.

[0005]

However, the conventional CO ₂
Since the diffusion tube is filled with CO ₂ gas and is naturally dissolved in water, it is difficult to spread CO ₂ evenly throughout the water in the water tank. As the size of the aquarium becomes larger, the tendency becomes greater and the intended purpose cannot be achieved.
In order to promote the dissolution of CO ₂ into water, it is necessary for the O ₂ diffusion cylinder to have a large opening area into the water, which causes the CO ₂ diffusion cylinder to be conspicuous and impair the aesthetics of the aquarium. There are also challenges.

The present invention has been made in view of the above circumstances, and enables CO ₂ to be bubbled by a submersible pump to be forcibly supplied into the water and to function as a decorative article for a diffusion cylinder. It is an object of the present invention to provide a novel CO ₂ supply device in a water tank that can solve the problems.

[0007]

To achieve the above object, according to the invention of claim 1, an underwater pump provided in a water tank for sucking water in the water tank, and an underwater pump provided in the water tank are provided. The inlet communicates with the outlet of the submersible pump, and the outlet
And CO ₂ diffusion tube but which communicates with the water tank, which is more configuration and CO ₂ cylinder which is connected to the opening to the CO ₂ inlet communication passage between the water pump and the CO ₂ diffusion tube, said water pump and to dissipate in the water tank through CO ₂ diffusion tube while mixing CO ₂ in the water in the water tank by the operation, a water tank CO ₂ supply device, the CO ₂ diffusion tube is formed in a closed shape, An outer cylinder having an opening that communicates with the inside of the water tank, an inner cylinder that has an annular gap in the outer cylinder and has an opening at its lower end that communicates with the discharge port of the submersible pump, It is composed of a spiral guide blade provided in the gap, and this guide blade swirls and guides from the top to the bottom while allowing the bubble-like CO ₂ gas flowing into the CO ₂ diffusion cylinder to elute into water. It is characterized by being configured as follows.

According to the invention described in claim 2,
The one according to claim 1, wherein the CO ₂ diffusion cylinder is transparent.
It is characterized by being formed by the body. Further main contract
According to the invention described in claim 3,
In addition, the spiral guide blade is a CO ₂ diffusion tube.
A plurality of guide breaks arranged at intervals in the longitudinal direction
Each of the guide blade plates has a ring-shaped gap.
It is formed with a length that goes around once
And allow upward passage of CO ₂ bubbles between their free ends.
It is characterized in that each of the play gaps to be obtained is formed.

[0009]

According to the first aspect of the invention, the submersible pump can forcibly dissolve the CO ₂ in the water in the CO ₂ diffusion cylinder and supply the water evenly to the water in the water tank. very effective der to the development of Ru. In addition, according to claim 2
According to Ming, while the CO ₂ gas swirls in the CO ₂ diffusion cylinder,
It is possible to see through the outside how it dissolves in water
Intriguing, in combination with its function as a diffusing tube ornament.
Therefore, the ornamental effect of the aquarium can be further enhanced. further
According to the invention of claim 3, the guide blade plate is used.
To guide the swirling of CO ₂ gas and its rise.
Each guide blade plate can be made simple
It is easy to manufacture and can be offered at a low price.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings.

[0011] Figure 1 is equipped with a water tank CO ₂ feeder invention, partially broken overall front view of the tub, Figure 2 is a fragmentary vertical sectional side view of the entire present invention tub CO ₂ supply device, FIG. 3 Is CO
_{2 is} an enlarged cross-sectional view of the main part of the ₂ diffusion tube, and FIG. 4 is an enlarged perspective view of the main part of the CO ₂ diffusion tube.

1 and 2, a submersible pump P, a CO ₂ diffusion cylinder D and a water discharge pipe W, which constitute a CO ₂ supply device, are housed and held in a rectangular parallelepiped water tank V, and outside the water tank V, A CO ₂ cylinder B for supplying CO ₂ gas is suspended and held on the CO ₂ diffusion cylinder D.

The submersible pump P is detachably held by a suction cup 6 on the lower side wall of the water tank V. This submersible pump P
At the bottom of it is a downward suction port 1 and a lateral discharge port 2
And are opened, and a strainer 3 is connected to the suction port 1. The strainer 3 is embedded in a small stone group 7 such as Oiso laid in the water tank V. The submersible pump P includes a motor 4 driven by a 100V power source,
The impeller 5 driven by this is provided, and by this driving, the water in the water tank V is filtered through the pebbles group 7 and the strainer 3, and then sucked from the suction port 1 and discharged from the discharge port 2.
Is discharged more. The CO ₂ diffusion tube D is detachably supported in the discharge port 2 in an upright state via a communication pipe 8 which is an elbow pipe.

Next, the structure of the diffusion cylinder D will be described with reference to FIGS. 2 to 4. The transparent outer cylinder 10 having a closed hollow cylindrical shape.
A transparent inner cylinder 11, which also has a hollow cylindrical shape, is inserted and fixed therein, and an annular gap 12 is formed between these inner and outer cylinders 11 and 10. Further, the inner cylinder 11 has an inlet 9 communicating with the discharge port 2 of the submersible pump P at the lower end thereof, and a communicating port 13 formed at the upper end thereof by being cut out over substantially half the circumference thereof, and through the communicating port 13. The inside of the inner cylinder 11 communicates with the annular gap 12. A guide blade 14 is provided in the annular gap 12. The guide blade 14 is composed of a plurality of guide blade plates 14a to 14x fixed to the outer peripheral surface of the inner cylinder 11 at substantially the same pitch in the vertical direction, and these guide blade plates 14a to 14x are provided.
Thus, a spiral swirl passage 15 is formed in the annular gap 12. Each of the plurality of guide blade plates 14a to 14x is a spiral plate which is twisted in a spiral shape in the same direction and makes a round of the outer circumference of the inner cylinder 11, and each of the guide blade plates 14a to 14x is formed. The upper and lower free ends Eu and Ed are formed in a tapered knife edge shape and are vertically separated from each other in the axial direction of the inner cylinder 11, and between them, as described later, CO ₂ bubbles rise. A playable gap 16 is formed to allow passage, and a plurality of guide blade plates 14a-1
The 4x multiple play gaps 16 allow the upward passage of CO ₂ bubbles,
The inner cylinder 11 is formed in a spiral shape from the upper part to the lower part along the outer periphery thereof. Then, the lower free end Ed of the upper guide blade (eg 14a) and the upper free end Eu of the lower guide blade (eg 14b) are slightly vertically displaced from each other, and the play 1
6 are opposed to each other, and as a result, as will be described later, the CO ₂ bubbles guided by the lower surface of the upper guide blade (for example, 14a) to swirl are guided to the flow of water and part of them are guided. It is transferred to the lower guide blade (for example, 14b) and swivels along the lower surface thereof.

Below the guide blade 14, a partition plate 19 that closes the lower part of the annular gap 12 is fixed to the inner cylinder 11, and a plurality of throttle passages 20 are formed in the partition plate 19, and the annular gap 12 is formed by these. Through the throttle passage 20 and communicates with an outlet 21 that opens at the bottom of the outer cylinder 10. The outlet 21 is connected to a water supply pipe 23 via an elbow pipe 22. The water supply pipe 23 extends substantially vertically in the water tank V, and the upper end thereof is connected to a water discharge pipe 25 having a plurality of water discharge ports 26 opened via another elbow pipe 24. The water discharge pipe 25 extends substantially horizontally in the water tank V and is fixed to the suction cup 27 on its inner surface. Then, the elbow pipe 22, the water supply pipe 23, and the other elbow pipe 24
The water discharge pipe 25 constitutes a water discharge pipe W.

As clearly shown in FIG. 2, a communication pipe 8 composed of an elbow pipe connecting the submersible pump P and the CO ₂ diffusion cylinder D.
Is provided with a CO ₂ introduction port 28, and the C is provided outside the water tank V through a flexible tube 29 at the introduction port 28.
It is connected to the O ₂ cylinder B via a pressure reducing valve 30.

An air vent hole 31 is opened on the upper surface of the outer cylinder 10, and a closing valve 32 made of an elastic material such as rubber is fitted in the air vent hole 31. The valve 32 is free to move due to its own elasticity. In this state, the valve portion 33 has the air vent hole 31
The air vent hole 31 is opened by pressing the closing valve 32 downward against its elasticity, and the air accumulated in the upper part of the outer cylinder 10 can be discharged to the outside. It is like this.

Next, the operation of this embodiment will be described.

Now, the submersible pump P is driven and CO ₂
The pressure reducing valve 30 of the cylinder B is opened. In this case, the pressure reducing valve 30 is adjusted so that a small amount of CO ₂ gas is continuously supplied from the flexible tube 29 to the diffusion tube D through the CO ₂ inlet 30.

By operating the submersible pump P, the water in the water tank V is sucked into the submersible pump P after being filtered through the pebbles group 7 and the strainer 3. Pressurized water from the submersible pump P is pressure-fed to the CO ₂ diffusion cylinder D from the discharge port 2.
At that time, a small amount of CO ₂ gas is continuously introduced from the CO ₂ cylinder B into the CO ₂ diffusion cylinder D through the CO ₂ introduction port 28.
In the CO ₂ diffusion cylinder D, the water mixed with the CO ₂ gas rises in the inner pipe 11 to reach the upper end thereof, and then flows through the communication port 13 into the upper part of the annular gap 12. The water mixed with the CO ₂ gas, which has entered the annular gap 12, is
It flows downward in the swirl passage 15 formed by the guide blades 14 including the plurality of guide blade plates 14a to 14x in the second passage, passes through the throttle passage 19 and then flows into the water supply pipe 23.

By the way, as shown in FIGS.₂diffusion
In the cylinder D, the CO that has been mixed with water and has risen in the inner cylinder 11₂
The gas is in the form of fine bubbles and forms an annular gap 1 through the communication port 13.
2 and is guided by the flow of water, as shown by arrow a.
Flow downward along the upper surface of the upper guide blade plate 14a.
At the lower free end Ed of the guide blade 14a.
CO₂Most of the gas bubbles are guided by the flow of water.
And then hit the lower surface of the uppermost guide blade 14a.
And spirally flows along its lower surface, but CO ₂Bubbles
Part of the guide blade plate 14 is pushed by the flow of water
It flows from the upper free end Eu of b toward the lower surface. Sanawa
As shown most clearly in Fig. 4, the uppermost guide blade
CO flowing on the upper surface of the plate 14a₂The bubble group (arrow a) is
The uppermost guide at the lower free end Ed of the blade plate 14a
The lower surface of the blade plate 14a and the guide blade 14b of the next stage
It flows separately to the lower surface (arrows b and c). And the top edge
CO flowing along the lower surface of the guide blade 14a of the₂Bubbles
The group is again the lower end of the guide blade plate 14a at the uppermost stage.
Ed, where the uppermost guide blade plate 14a
Divide into the lower surface and the lower surface of the guide blade plate 14b of the next stage.
Flow (arrows b ', c'). Also next guide blade
It flows along the lower surface of the plate 14B and goes around the outer circumference of the inner cylinder 11 once.
CO₂The bubble group is the lower free end of the guide blade plate 14b.
It reached to Ed, and most of it went up the play 16 and again
While returning to the lower surface of the inner blade 14b, a part of it returns to the water flow.
Pushed by this, to the lower surface of the third guide blade plate 14c
It flows (arrows d and e). In the same way, guide the third stage
CO flowing along the blade 14c₂The group of bubbles is the round trip
The guide blade plate 14 of the third stage is passed where the edge Ed is passed.
c, and the flow is branched to the guide blade 14d of the fourth stage
(Arrows f, g).

The CO flowing into the annular gap 12 as described above
_{While the two} bubble groups flow in the swirl passage 15 formed by the plurality of guide plates 14a to 14x, a part of them rises in the play 16 against the flow of water, and again along the lower surface of the upper guide blade. As a whole, the CO ₂ gas has a longer residence time than the flow of water and flows through the swirl passage 15, and gradually dissolves in the water to reduce the size of bubbles, resulting in CO ₂ gas. When it reaches the lowermost guide blade 14x, it almost dissolves in water. Then, the water in which CO ₂ is sufficiently dissolved flows through the throttle passage 20 from the outlet 21 to the water supply pipe 23 and the water discharge pipe 25, and is diffused into the water tank V from the plurality of water discharge ports 26.

Although one embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and various embodiments are possible within the scope of the present invention. For example, although the suction port of the submersible pump is directly opened in the water tank in the above-mentioned embodiment, a filtration device may be connected to this suction port. Can be used for both. In the above embodiment,
The CO ₂ diffusion cylinder was made of a transparent material, which was semi-transparent.
It may be formed of a body or an opaque body.

[0024]

As described above, according to the first aspect of the present invention, the submersible pump provided in the water tank for sucking the water in the water tank and the submersible pump provided in the water tank and having the inlet are C that is connected to the discharge port and the outlet is connected to the water tank
And O ₂ diffusion tube, which is more configuration and CO ₂ cylinder which is connected to the opening to the CO ₂ inlet communication passage between the water pump and the CO ₂ diffusion tube, the water in the water tank by the operation of the water pump and to dissipate in the water tank through CO ₂ diffusion tube while mixing the CO _2, a tub CO ₂ supply device, the CO ₂ diffusion tube is formed in a closed shape, the outlet being communicated with the water tank An outer cylinder having an opening, an inner cylinder having an inlet opened so that the lower end communicates with the discharge port of the submersible pump, the inner cylinder having an annular gap inserted therein, and a spiral shape provided in the annular gap. The guide blade is configured to swirl and guide from the top to the bottom while staying in order to elute the bubble-like CO ₂ gas flowing into the CO ₂ diffusion cylinder into the water. CO ₂ by submersible pump
Forcibly dissolves in water to make it evenly distributed in the water in the aquarium
Can be mixed in. The invention according to claim 2
According to the method, CO ₂ is formed by a transparent body.
Ri, CO ₂ gas in the CO ₂ diffusion cylinder in addition to the operational effect
Watch the bubbles swirl and gradually dissolve into the water from the outside
I was intrigued and became more interested,
Combined with the function as a decorative body, it will enhance the ornamental effect of the entire aquarium.
The layers can be increased. According to the invention of claim 3,
Then, in the one according to claim 1, the spiral
The guide blades are spaced in the longitudinal direction of the CO ₂ diffusion tube.
Each guide consists of multiple guide blade plates
The blade plate is formed to have a length that makes one round of the annular gap.
And has upper and lower free ends that are vertically separated from each other, and between the free ends.
There is a play space that allows the upward passage of CO ₂ bubbles.
In addition to the function and effect of the invention according to claim 1,
By their guide blades plate, pivoting induction of CO ₂ gas
And the induction of the rise can be performed, and each guide
The blade plate has a simple shape and is easy to manufacture,
It can be provided at a low price.

[0025]

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a water tank equipped with a CO ₂ supply device in the water tank.

[Figure 2] Overall side view of the longitudinal section of the main part of the CO ₂ supply device in the water tank

FIG. 3 is an enlarged sectional view of a main part of a CO ₂ diffusion tube.

FIG. 4 is an enlarged perspective view of a main part of a CO ₂ diffusion tube.

[Explanation of symbols]

2 ... Discharge port 8 ... Communication passage 9 ... Inlet (inner cylinder) 10 ... Outer cylinder 11 ... .... Inner cylinder 12 ..... annular gap 14 .... Guide blades 14a to 14x .... Guide blade plate 16 .... Playing space 21 ... ..Outlet (outer cylinder) 28 ... CO ₂ inlet B ... CO ₂ cylinder D ... CO ₂ diffusion cylinder Eu ..Upward free end (guide blade plate) Ed ........ Lower free end (guide blade plate) V .... Water tank W ..... Water discharge pipe

Claims (3)

(57) [Claims] 1. A submersible pump (P) provided in a water tank (V) for sucking water in the water tank (V), and an inlet (9) provided in the water tank (V) having the submersible pump (9). P) is connected to the discharge port (2), and the outlet (21) is in the water tank (V).
CO connected to a CO ₂ diffusion tube (D) and a CO ₂ introduction port (28) opened in a communication passage (8) between the submersible pump (P) and the CO ₂ diffusion tube (D). It is composed of _two cylinders (B), and by operating the submersible pump (P), while mixing CO ₂ into the water in the water tank (V), CO
_A CO ₂ supply device in a water tank configured to diffuse into a water tank (V) through a ₂ diffusion tube (D), wherein the CO ₂ diffusion tube (D) is hermetically formed and Outer cylinder (1
0) and the outer cylinder (10) is inserted into the outer cylinder (10) with an annular space (12) and the lower end is the discharge port (2) of the submersible pump (P).
It comprises an inner cylinder (11) having an opening (9) which is communicated with the inner cylinder (11) and a spiral guide blade (14) provided in the annular space (12). The guide blade (14) is C
In order to elute O ₂ diffusion tube (D) a bubble-like CO ₂ gas flowing into the water, characterized in that it is configured to pivot guided from top to bottom while staying, tub CO ₂
Supply device. 2. The CO ₂ diffusion cylinder (D) is made of a transparent material.
The inside of the aquarium according to claim 1, characterized in that
CO ₂ supply device. 3. The spiral guide blade (14) is C
Spaced in the longitudinal direction of the O ₂ diffusion tube (D)
Consisting of multiple guide blade plates (14a-14x),
Each guide blade plate goes around the annular gap (12) approximately once.
Vertical free end (Eu,
Ed) and CO ₂ between their free ends (Eu, Ed)
Each of the play spaces (16) that allows the ascending passage of bubbles has a shape.
The CO ₂ supply device in a water tank according to claim 1, wherein the CO ₂ supply device is formed.